Results 181 to 190 of about 5,467 (215)

Antenna Design and Optimization for 5G, 6G, and IoT. [PDF]

Sensors (Basel)
Jahanbakhsh Basherlou H, Ojaroudi Parchin N, See CH.   +2 more
europepmc   +1 more source

Germanium‐Based Mid‐Infrared Integrated Photonics

Laser &Photonics Reviews, EarlyView.
The mid‐infrared (mid‐IR) spectral range is a part of the electromagnetic spectrum in which most of the molecules have vibrational and rotational resonances. Photonics integration in this wavelength range have thus seen a burst of interest in the recent years, mainly driven by applications related with the detection of chemical and biological ...
Delphine Marris‐Morini, Goran Z. Mashanovich, Milos Nedeljkovic, Carlos Alonso‐Ramos, Laurent Vivien, Jacopo Frigerio, Giovanni Isella   +6 more
wiley   +1 more source

Graphene based terahertz MIMO antenna with machine learning regression for 6G communications. [PDF]

Sci Rep
Haque MA, Akhter MS, Das I, Zaman TU, Tiang JJ, Singh NSS, Algarni AD, Ateya AA.   +7 more
europepmc   +1 more source

Optical Skyrmions with Tunable or Reconfigurable Topology Using Spin‐Decoupled Metaoptics

Laser &Photonics Reviews, EarlyView.
The work introduces advanced optical elements capable of generating and dynamically reconfiguring complex light patterns known as optical skyrmions. By precisely shaping light polarization at the nanoscale, a single engineered metasurface can generate and manipulate robust and tunable polarization textures in an efficient and scalable way.
Andrea Vogliardi, Daniele Bonaldo, Simone Dal Zilio, Vittorio Apolloni, Filippo Romanato, Gianluca Ruffato   +5 more
wiley   +1 more source

Design of a compact multistubs resonator based dual-band flexible wearable antenna with low SAR for sub-6 GHz ISM applications. [PDF]

Sci Rep
Soni GK, Yadav D, Kumar A, Rathi A, Yadav SV.   +4 more
europepmc   +1 more source

Static and Dynamic Analysis of Porous Gas Bearings Lubricated With Air, Refrigerant R‐134a, Helium and Hydrogen

Lubrication Science, EarlyView.
ABSTRACT Porous gas bearings (PGBs) enable high‐speed, oil‐free operation in modern rotating machinery. This study develops a coupled thermo‐hydrodynamic (THD) model for a cylindrical porous gas bearing lubricated with four working fluids—air, R‐134a, helium and hydrogen.
S. Bechiri, B. Bouchehit, B. Bou‐Saïd
wiley   +1 more source

A Compact Broadband Common-Aperture Dual-Polarized Antenna for Drone Applications. [PDF]

Micromachines (Basel)
Li XP, He CL, Ji JF, Yang MB, Zhang Y, Zhang AX, Li W.   +6 more
europepmc   +1 more source

Functional metamaterials for wireless antenna applications - A review abetted with patent landscape analysis. [PDF]

Heliyon
Vetrichelvi G, Gowtham P, Balaji D, Rajeshkumar L.   +3 more
europepmc   +1 more source

Graphene-Based Plasmonic Antenna for Advancing Nano-Scale Sensors. [PDF]

Nanomaterials (Basel)
Ahmad W, Wang Y, Du G, Yang Q, Chen F.
europepmc   +1 more source